Amblygonite and Arfvedsonite Physical Properties

Amblygonite

Arfvedsonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-3.103.3-3.5

1 7.18

1.5 Fracture

Sub-Conchoidal, Irregular/uneven, Sub-Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

[100] Perfect, [110] Good, [011] Distinct

Perfect on [110]

1.7 Mohs Hardness

65-6

2 10

1.8 Chemical Composition

(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

NaNa2(Fe++4Fe+++)Si8O22(OH)2

Amblygonite and Arfvedsonite Chemical Formula

While comparing Amblygonite and Arfvedsonite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Amblygonite and Arfvedsonite chemical formula.

Chemical formula of Amblygonite- (Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Arfvedsonite- NaNa2(Fe++4Fe+++)Si8O22(OH)2

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Amblygonite and Arfvedsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amblygonite and Arfvedsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amblygonite and Arfvedsonite Optical Properties during the identification of gemstone. Specific gravity of Amblygonite is 3.3-3.5 whereas that of Arfvedsonite is 3.3-3.5.